SCOTS singing star Susan Boyle is almost certain to be asked to take part in recording a Song for Haiti..Showbiz reports across the globe were quick to say SuBo had already been signed up for the single which is being masterminded by her friend and mentor Simon Cowell..But the superstar from West Lothian revealed yesterday she was still to get a call to take part in the biggest fundraising record since Band Aid..Yesterday, just hours after the Britain's Got Talent boss revealed he had been approached by the Prime Minister and promised to "make it happen", Susan said she was still waiting on news.Pic shows Susan Boyle outside her house in Blackburn.